Kennametal 3660156 Carbide Replaceable Tip Drill 20mm

Product Description

The KENNAMETAL 3660156 is a carbide replaceable tip drill insert from the KSEM Plus series, designed for high-productivity drilling in demanding metalworking applications. Manufactured from solid carbide with a fine grain material grade and a PVD-applied TiAlN coating, this tip delivers strong wear resistance and thermal stability at the cutting edge. The HPG insert geometry and 140-degree drill point angle promote self-centering entry and efficient chip evacuation. It is intended for use by machinists and tooling professionals working on CNC machining centers and similar production equipment where insert replacement reduces downtime compared to indexable systems.

This tip is suited for drilling into a broad range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium, covering ISO material groups P, M, K, N, and S. The insert seat size 3 and helical flute configuration with regular spiral support stable cutting action across these material categories. It is commonly installed in production and job shop environments where consistent hole quality and fast tip changeover are priorities.

Key Features

• Solid carbide construction with fine grain material grade for edge strength and dimensional stability
• PVD TiAlN coating provides wear resistance and heat tolerance across steel and superalloy applications
• HPG insert geometry with 140-degree included angle for accurate self-centering and reduced thrust force
• Helical flute with regular spiral promotes controlled chip flow in through and blind hole drilling
• Clamp-style insert holding method for repeatable seating and fast field replacement
• Covers ISO workpiece material groups P, M, K, N, and S in a single tip configuration

Compatibility

Designed as a replaceable tip for KSEM Plus series drill bodies using insert seat size 3, compatible with bodies configured to accept the KSEMP2000HPGM tip geometry.

Installation Notes

Installation and tip replacement should be performed by a qualified machinist with the machine in a powered-down, locked-out state. Use the correct clamp torque driver specified by the drill body manufacturer for the insert seat size to ensure proper seating without overtightening. Inspect the insert pocket and clamping surfaces for chips or damage before seating a new tip. Confirm tip is fully seated and clamped before resuming cutting operations.